Off-line phase-averaged particle image velocimetry and OH chemiluminescence measurements using acoustic time series
Fischer, Andre and Bake, Friedrich and Heinze, Johannes and Diers, Olaf and Willert, Christian and Röhle, Ingo (2008) Off-line phase-averaged particle image velocimetry and OH chemiluminescence measurements using acoustic time series. Measurement Science and Technology, 20 (7). IOP.
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Official URL: http://dx.doi.org/10.1088/0957-0233/20/7/075403
In order to analyze unsteady flow phenomena in combustion facilities two phase-sorting methods have been developed and investigated for the retrieval of phase-resolved data from (randomly) sampled 'single-shot' data such as PIV recordings or chemiluminescence imagery in a post-processing step. This is made possible by simultaneously recorded continuous time traces of reference data (e.g., pressure signal). Using this off-line method synchronous phase-locked PIV and OH chemiluminescence visualizations could be recovered from data obtained in two different combustion facilities. This paper also presents some of the theoretical background necessary for the application of two different phase-sorting algorithms.
|Title:||Off-line phase-averaged particle image velocimetry and OH chemiluminescence measurements using acoustic time series|
|Journal or Publication Title:||Measurement Science and Technology|
|In Open Access:||Yes|
|In ISI Web of Science:||Yes|
|Keywords:||particle image veocimetry, PIV, Hilbert transform, phase-locked measurement, phase sorting, Hilbert spectral analysis, Hilbert–Huang transform, empirical mode decomposition, combustion diagnostics, nonlinear data analysis, planar velocimetry, imaging methods, HHT, chemilumescence|
|HGF - Research field:||Energy, Aeronautics, Space and Transport|
|HGF - Program:||Aeronautics, Efficient Energy Conversion|
|HGF - Program Themes:||L ER - Engine Research, E VG - Combustion and Gas Turbine Technologies|
|DLR - Research area:||Aeronautics|
|DLR - Program:||L ER - Engine Research, E VG - Combustion and Gas Turbine Technologies|
|DLR - Research theme (Project):||E - Gasturbine (old), L - Virtual Engine and Validation Methods|
|Institutes and Institutions:||Institute of Propulsion Technology > Engine Acoustic|
Institute of Propulsion Technology
Institute of Propulsion Technology > Engine Measurement Systems
Institute of Propulsion Technology > Combustor
|Deposited By:||Dr.phil. Christian Willert|
|Deposited On:||14 Oct 2009 09:51|
|Last Modified:||15 Jan 2010 00:03|
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